20
20
Dec 3, 2017
12/17
by
The Okey Dokies; B. Linz; Bent Fabricius-Bjerres kvartet; Earl & Alden Shuman, Brown
audio
eye 20
favorite 0
comment 0
2
2.0
Jun 30, 2018
06/18
by
E. Wisnioski; N. M. Förster Schreiber; S. Wuyts; E. Wuyts; K. Bandara; D. Wilman; R. Genzel; R. Bender; R. Davies; M. Fossati; P. Lang; J. T. Mendel; A. Beifiori; G. Brammer; J. Chan; M. Fabricius; Y. Fudamoto; S. Kulkarni; J. Kurk; D. Lutz; E. J. Nelson; I. Momcheva; D. Rosario; R. Saglia; S. Seitz; L. J. Tacconi; P. G. van Dokkum
texts
eye 2
favorite 0
comment 0
We present the KMOS^3D survey, a new integral field survey of over 600 galaxies at 0.71$, implying that the star-forming 'main sequence' (MS) is primarily composed of rotating galaxies at both redshift regimes. When considering additional stricter criteria, the Halpha kinematic maps indicate at least ~70% of the resolved galaxies are disk-like systems. Our high-quality KMOS data confirm the elevated velocity dispersions reported in previous IFS studies at z>0.7. For rotation-dominated disks,...
Topics: Astrophysics of Galaxies, Astrophysics, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1409.6791
2
2.0
Jun 29, 2018
06/18
by
David Hobbs; Erik Høg; Alcione Mora; Cian Crowley; Paul McMillan; Piero Ranalli; Ulrike Heiter; Carme Jordi; Nigel Hambly; Ross Church; Brown Anthony; Paolo Tanga; Laurent Chemin; Jordi Portail; Fran Jiménez-Esteban; Sergei Klioner; Francois Mignard; Johan Fynbo; Łukasz Wyrzykowski; Krzysztof Rybicki; Richard I. Anderson; Alberto Cellino; Claus Fabricius; Michael Davidson; Lennart Lindegren
texts
eye 2
favorite 0
comment 0
ESA recently called for new "Science Ideas" to be investigated in terms of feasibility and technological developments -- for technologies not yet sufficiently mature. These ideas may in the future become candidates for M or L class missions within the ESA Science Program. With the launch of Gaia in December 2013, Europe entered a new era of space astrometry following in the footsteps of the very successful Hipparcos mission from the early 1990s. Gaia is the successor to Hipparcos,...
Topics: Astrophysics, Instrumentation and Methods for Astrophysics
Source: http://arxiv.org/abs/1609.07325
7
7.0
Jun 29, 2018
06/18
by
X. Mazzalay; J. Thomas; R. P. Saglia; G. A. Wegner; R. Bender; P. Erwin; M. H. Fabricius; S. Rusli
texts
eye 7
favorite 0
comment 0
We obtained adaptive-optics assisted SINFONI observations of the central regions of the giant elliptical galaxy NGC5419 with a spatial resolution of 0.2 arcsec ($\approx 55$ pc). NGC5419 has a large depleted stellar core with a radius of 1.58 arcsec (430 pc). HST and SINFONI images show a point source located at the galaxy's photocentre, which is likely associated with the low-luminosity AGN previously detected in NGC5419. Both the HST and SINFONI images also show a second nucleus, off-centred...
Topics: Astrophysics, Astrophysics of Galaxies
Source: http://arxiv.org/abs/1607.06466
17
17
Dec 1, 2017
12/17
by
Birthe Buch; Robert Arnold; Bent Fabricius-Bjerres ork; Philip Green
audio
eye 17
favorite 0
comment 0
20
20
Dec 3, 2017
12/17
by
Birthe Wilke + Mogen Wedel; Peter Mynte; Arne Lambert; Erfred Fabricius
audio
eye 20
favorite 0
comment 0
3
3.0
Jun 30, 2018
06/18
by
D. W. Evans; M. Riello; F. De Angeli; G. Busso; F. van Leeuwen; C. Jordi; C. Fabricius; A. G. A. Brown; J. M. Carrasco; H. Voss; M. Weiler; P. Montegriffo; C. Cacciari; P. Burgess; P. Osborne
texts
eye 3
favorite 0
comment 0
Aims. The photometric validation of the Gaia DR1 release of the ESA Gaia mission is described and the quality of the data shown. Methods. This is carried out via an internal analysis of the photometry using the most constant sources. Comparisons with external photometric catalogues are also made, but are limited by the accuracies and systematics present in these catalogues. An analysis of the quoted errors is also described. Investigations of the calibration coefficients reveal some of the...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1701.05873
2
2.0
Jun 30, 2018
06/18
by
Valeri V. Makarov; Claus Fabricius; Julien Frouard
texts
eye 2
favorite 0
comment 0
A significant number of double stars with separations up to 2.5 arcsec are present in the Gaia Data Release 1 astrometric catalogs. Limiting our analysis to a well-studied sample of 1124 doubles resolved by Hipparcos, provided with individual Tycho component photometry, and cross-matched with the TGAS catalog, we estimate a rate of at least 3% for brighter double stars in Gaia DR1, which should be resolved in the future data releases. Gaia astrometric results are affected by unresolved...
Topics: Astrophysics of Galaxies, Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1704.00340
28
28
Dec 3, 2017
12/17
by
Kordt sisters; Buddy Bernier; Bent Fabricius-Bjerre og hans ork.; Nat Simon
audio
eye 28
favorite 0
comment 0
3
3.0
Jun 29, 2018
06/18
by
R. P. Saglia; M. Opitsch; P. Erwin; J. Thomas; A. Beifiori; M. Fabricius; X. Mazzalay; N. Nowak; S. P. Rusli; R. Bender
texts
eye 3
favorite 0
comment 0
We investigate the correlations between the black hole mass $M_{BH}$, the velocity dispersion $\sigma$, the bulge mass $M_{Bu}$, the bulge average spherical density $\rho_h$ and its spherical half mass radius $r_h$, constructing a database of 97 galaxies (31 core ellipticals, 17 power-law ellipticals, 30 classical bulges, 19 pseudo bulges) by joining 72 galaxies from the literature to 25 galaxies observed during our recent SINFONI black hole survey. For the first time we discuss the full error...
Topics: Astrophysics, Astrophysics of Galaxies
Source: http://arxiv.org/abs/1601.00974
19
19
Dec 3, 2017
12/17
by
Birthe Buch; Gasta Berg; Bent Fabricius-Bjerres orkester; L. Landgren
audio
eye 19
favorite 0
comment 0
2
2.0
Jun 29, 2018
06/18
by
M. Fossati; D. J. Wilman; J. T. Mendel; R. P. Saglia; A. Galametz; A. Beifiori; R. Bender; J. C. C. Chan; M. Fabricius; K. Bandara; G. B. Brammer; R. Davies; N. M. Förster Schreiber; R. Genzel; W. Hartley; S. K. Kulkarni; P. Lang; I. G. Momcheva; E. J. Nelson; R. Skelton; L. J. Tacconi; K. Tadaki; H. Übler; P. G. van Dokkum; E. Wisnioski; K. E. Whitaker; E. Wuyts; S. Wuyts
texts
eye 2
favorite 0
comment 0
We make publicly available a catalog of calibrated environmental measures for galaxies in the five 3D-HST/CANDELS deep fields. Leveraging the spectroscopic and grism redshifts from the 3D-HST survey, multi wavelength photometry from CANDELS, and wider field public data for edge corrections, we derive densities in fixed apertures to characterize the environment of galaxies brighter than $JH_{140} < 24$ mag in the redshift range $0.5
Topics: Astrophysics, Astrophysics of Galaxies
Source: http://arxiv.org/abs/1611.07524
2
2.0
Jun 30, 2018
06/18
by
Elisa Portaluri; Victor P. Debattista; Maximillian Fabricius; David R. Cole; Enrico M. Corsini; Niv Drory; Andrew Rowe; Lorenzo Morelli; Alessandro Pizzella; Elena Dalla Bonta'
texts
eye 2
favorite 0
comment 0
A minimum in stellar velocity dispersion is often observed in the central regions of disc galaxies. To investigate the origin of this feature, known as a {\sigma}-drop, we analyse the stellar kinematics of a high-resolution N-body + smooth particle hydrodynamical simulation, which models the secular evolution of an unbarred disc galaxy. We compared the intrinsic mass-weighted kinematics to the recovered luminosity-weighted ones. The latter were obtained by analysing synthetic spectra produced...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1702.02162
34
34
Sep 18, 2013
09/13
by
Klaus Fabricius; Barry M. McCoy
texts
eye 34
favorite 0
comment 0
We compute the operator which creates the missing degenerate states in the algebraic Bethe ansatz of the 8 vertex model at roots of unity and relate it to the concept of an elliptic current operator. We find that in sharp contrast with the corresponding formalism in the six-vertex model at roots of unity the current operator is not nilpotent with the consequence that in the construction of degenerate eigenstates of the transfer matrix an arbitrary number of exact strings can be added to the set...
Source: http://arxiv.org/abs/cond-mat/0606190v4
5
5.0
Jun 29, 2018
06/18
by
J. M. Carrasco; D. W. Evans; P. Montegriffo; C. Jordi; F. van Leeuwen; M. Riello; H. Voss; F. De Angeli; G. Busso; C. Fabricius; C. Cacciari; M. Weiler; E. Pancino; A. G. A. Brown; G. Holland; P. Burgess; P. Osborne; G. Altavilla; M. Gebran; S. Ragaini; S. Galleti; G. Cocozza; S. Marinoni; M. Bellazzini; A. Bragaglia; L. Federici; L. Balaguer-Núñez
texts
eye 5
favorite 0
comment 0
Context. Gaia is an ESA cornerstone mission launched on 19 December 2013 aiming to obtain the most complete and precise 3D map of our Galaxy by observing more than one billion sources. This paper is part of a series of documents explaining the data processing and its results for Gaia Data Release 1, focussing on the G band photometry. Aims. This paper describes the calibration model of the Gaia photometric passband for Gaia Data Release 1. Methods. The overall principle of splitting the process...
Topics: Astrophysics, Instrumentation and Methods for Astrophysics
Source: http://arxiv.org/abs/1611.02036
25
25
Dec 2, 2017
12/17
by
The Okey Dokies; Bent Fabricius-Bjerres orkester; Ole Mortensen
audio
eye 25
favorite 0
comment 0
23
23
Dec 2, 2017
12/17
by
Gitte og Otto Hanning; Otto Hanning; Bent Fabricius-Bjerres orkester; Wayne Shanklin
audio
eye 23
favorite 0
comment 0
55
55
Sep 22, 2013
09/13
by
Klaus Fabricius; Barry M. McCoy
texts
eye 55
favorite 0
comment 0
We compute the correlation functions of the three state superintegrable chiral Potts spin chain for chains of length 3,4,5. From these results we present conjectures for the form of the nearest neighbor correlation function.
Source: http://arxiv.org/abs/1001.0614v2
21
21
Dec 3, 2017
12/17
by
Peer Rygaard Nielsen (6 ar); Poul. M. Jorgensen; Bent Fabricius-Bjerre's trio; Johnny Marks
audio
eye 21
favorite 0
comment 0
2
2.0
Jun 30, 2018
06/18
by
John Fabricius
texts
eye 2
favorite 0
comment 0
We study the solvability of the Stokes system in a bounded Lipschitz domain in $\R^n$ when the flow is subjected to a mixed boundary condition: a Dirichlet condition for the velocity and a Neumann condition for the stress tensor. Some minor modifications to the standard theory are therefore required. The most noteworthy result is that both pressure and velocity are unique.
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.03155
15
15
Dec 3, 2017
12/17
by
Ole Mortensen; Robert Arnold; Bent Fabricius-Bjerres kvartet; Bob Hillard, Milton de Lugg
audio
eye 15
favorite 0
comment 0
22
22
Dec 3, 2017
12/17
by
The Okey-Dokies; Wilkonson; Bent Fabricius-Bjerres trio; Arthur Hammerstein
audio
eye 22
favorite 0
comment 0
43
43
Sep 21, 2013
09/13
by
K. Fabricius; A. Klümper; U. Löw; B. Büchner; T. Lorenz
texts
eye 43
favorite 0
comment 0
Experimental data for the magnetic susceptibility and magnetostriction of CuGeO_3 are analyzed within a one-dimensional antiferromagnetic model with nearest ({J_1}) and next-nearest neighbour interactions ({J_2}). We show that the ratio of the exchange constants in the antiferromagnetic chains of CuGeO_3 amounts to ${J_2}/{J_1}$ = 0.354(0.01), i.e. it is significantly larger than the critical value for the formation of a spontaneous gap in the magnetic excitation spectrum without lattice...
Source: http://arxiv.org/abs/cond-mat/9705036v1
2
2.0
Jun 30, 2018
06/18
by
Joshua J. Adams; Joshua D. Simon; Maximilian H. Fabricius; Remco C. E. van den Bosch; John C. Barentine; Ralf Bender; Karl Gebhardt; Gary J. Hill; Jeremy D. Murphy; R. A. Swaters; Jens Thomas; Glenn van de Ven
texts
eye 2
favorite 0
comment 0
We present new constraints on the density profiles of dark matter (DM) halos in seven nearby dwarf galaxies from measurements of their integrated stellar light and gas kinematics. The gas kinematics of low mass galaxies frequently suggest that they contain constant density DM cores, while N-body simulations instead predict a cuspy profile. We present a data set of high resolution integral field spectroscopy on seven galaxies and measure the stellar and gas kinematics simultaneously. Using Jeans...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1405.4854
3
3.0
Jun 30, 2018
06/18
by
Peter Erwin; Roberto Saglia; Jens Thomas; Maximilian Fabricius; Ralf Bender; Stephanie Rusli; Nina Nowak; John E. Beckman; Juan Carlos Vega Beltrán
texts
eye 3
favorite 0
comment 0
Detailed imaging and spectroscopic analysis of the centers of nearby S0 and spiral galaxies shows the existence of "composite bulges", where both classical bulges and disky pseudobulges coexist in the same galaxy. As part of a search for supermassive black holes in nearby galaxy nuclei, we obtained VLT-SINFONI observations in adaptive-optics mode of several of these galaxies. Schwarzschild dynamical modeling enables us to disentangle the stellar orbital structure of the different...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1409.7946
16
16
Dec 3, 2017
12/17
by
Birthe Buch; Knud Pheiffer; Bent Fabricius-Bjerre
audio
eye 16
favorite 0
comment 0
For jeres skyld bonus podcast telefon-fis special 2
20
20
Dec 2, 2017
12/17
by
Georg Otto; Bent Fabricius-Bjerres trio; Ross Parker
audio
eye 20
favorite 0
comment 0
Leif Druedahl 78rpm collection
0
0.0
Nov 25, 2020
11/20
by
Knud Pheiffer; Kordt sisters; Bent Fabricius-Bjerres kvintet; Martin, Trace & Watts
data
eye 0
favorite 0
comment 0
39
39
Sep 17, 2013
09/13
by
Klaus Fabricius; Barry M. McCoy
texts
eye 39
favorite 0
comment 0
We demonstrate that the Q matrix introduced in Baxter's 1972 solution of the eight vertex model has some eigenvectors which are not eigenvectors of the spin reflection operator and conjecture a new functional equation for Q(v) which both contains the Bethe equation that gives the eigenvalues of the transfer matrix and computes the degeneracies of these eigenvalues.
Source: http://arxiv.org/abs/cond-mat/0207177v3
56
56
Sep 20, 2013
09/13
by
L. A. Errico; G. Fabricius; M. Rentería; P. de la Presa; M. Forker
texts
eye 56
favorite 0
comment 0
We present an ab initio study of the relaxations introduced in TiO2 when a Cd impurity substitutes a Ti atom and the experimental test of this calculation by a perturbed-angular-correlation (PAC) measurement of the orientation of the electric-field gradient (EFG) tensor at the Cd site. The ab-initio calculation predicts strong anisotropic relaxations of the nearest oxygen neighbors of the impurity and a change of the orientation of the largest EFG tensor component, V33, from the [001] to the...
Source: http://arxiv.org/abs/cond-mat/0204335v2
31
31
Dec 2, 2017
12/17
by
Kordt sisters; Harry Lenk; Bent Fabricius-Bjerre og hans ork.; Paul McGrane
audio
eye 31
favorite 0
comment 0
17
17
Dec 3, 2017
12/17
by
Ole Mortensen; Peter Spar; Bent Fabricius-Bjerres orkester; Burger
audio
eye 17
favorite 0
comment 0
4
4.0
Jun 30, 2018
06/18
by
Maximilian H. Fabricius; Lodovico Coccato; Ralf Bender; Niv Drory; Claus Goessl; Martin Landriau; Roberto P. Saglia; Jens Thomas; Michael J. Williams
texts
eye 4
favorite 0
comment 0
Previous studies have reported the existence of two counter-rotating stellar disks in the early-type spiral galaxy NGC7217. We have obtained high-resolution optical spectroscopic data (R ~ 9000) with the new fiber-based Integral Field Unit instrument VIRUS-W at the 2.7m telescope of the McDonald Observatory in Texas. Our analysis confirms the existence of two components. However, we find them to be co-rotating. The first component is the more luminous (~ 77% of the total light), has the higher...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1404.2272
5
5.0
Jun 28, 2018
06/18
by
Alberto Maltz; Gabriel Fabricius
texts
eye 5
favorite 0
comment 0
An epidemic model with births and deaths is considered on a two dimensional LxL lattice. Each individual can have global infective contacts according to the standard SIR model rules or local infective contacts with its nearest neighbors. We propose a deterministic approach to this model and verified that there is a good agreement with the stochastic simulations for different situations of the disease transmission and parameters corresponding to pertussis and rubella in the prevaccine era.
Topics: Populations and Evolution, Quantitative Biology
Source: http://arxiv.org/abs/1506.06062
47
47
Dec 3, 2017
12/17
by
The Okey Dokies; Bent Fabricius-Bjerres trio; Arthur Hemmerstein - Wilkinson
audio
eye 47
favorite 0
comment 0
7
7.0
Jun 30, 2018
06/18
by
F. Arenou; X. Luri; C. Babusiaux; C. Fabricius; A. Helmi; A. C. Robin; A. Vallenari; S. Blanco-Cuaresma; T. Cantat-Gaudin; K. Findeisen; C. Reylé; L. Ruiz-Dern; R. Sordo; C. Turon; N. A. Walton; I-C. Shih; E. Antiche; C. Barache; M. Barros; M. Breddels; J. M. Carrasco; G. Costigan; S. Diakité; L. Eyer; F. Figueras; L. Galluccio; J. Heu; C. Jordi; A. Krone-Martins; R. Lallement; S. Lambert; N. Leclerc; P. M. Marrese; A. Moitinho; R. Mor; M. Romero-Gómez; P. Sartoretti; S. Soria; C. Soubiran;...
texts
eye 7
favorite 0
comment 0
Before the publication of the Gaia Catalogue, the contents of the first data release have undergone multiple dedicated validation tests. These tests aim at analysing in-depth the Catalogue content to detect anomalies, individual problems in specific objects or in overall statistical properties, either to filter them before the public release, or to describe the different caveats of the release for an optimal exploitation of the data. Dedicated methods using either Gaia internal data, external...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics of Galaxies, Astrophysics, Solar and...
Source: http://arxiv.org/abs/1701.00292
24
24
Dec 3, 2017
12/17
by
The Delta Rhythm boys; Bent Fabricius-Bjerres orkester
audio
eye 24
favorite 0
comment 0
Leif Druedahl 78rpm collection
1
1.0
Nov 25, 2020
11/20
by
Operasanger Holger Bruusgaard; orkester akkomp.; J. Fabricius
data
eye 1
favorite 0
comment 0
47
47
Sep 18, 2013
09/13
by
John R. Jardel; Karl Gebhardt; Maximilian Fabricius; Niv Drory; Michael J. Williams
texts
eye 47
favorite 0
comment 0
We introduce a novel implementation of orbit-based (or Schwarzschild) modeling that allows dark matter density profiles to be calculated non-parametrically in nearby galaxies. Our models require no assumptions to be made about velocity anisotropy or the dark matter profile. The technique can be applied to any dispersion-supported stellar system, and we demonstrate its use by studying the Local Group dwarf spheroidal (dSph) galaxy Draco. We use existing kinematic data at larger radii and also...
Source: http://arxiv.org/abs/1211.5376v1
Leif Druedahl 78rpm collection
0
0.0
Nov 25, 2020
11/20
by
Knud Pheiffer; Kordt sisters; Bent Fabricius-Bjerres kvintet; Frank Loesser
data
eye 0
favorite 0
comment 0
4
4.0
Jun 30, 2018
06/18
by
Maximilian H. Fabricius; Eva Noyola; Surangkhana Rukdee; Roberto P. Saglia; Ralf Bender; Ulrich Hopp; Jens Thomas; Michael Opitsch; Michael J. Williams
texts
eye 4
favorite 0
comment 0
Most Milky Way globular clusters (GCs) exhibit measurable flattening, even if on a very low level. Both cluster rotation and tidal fields are thought to cause this flattening. Nevertheless, rotation has only been confirmed in a handful of GCs, based mostly on individual radial velocities at large radii. We are conducting a survey of the central kinematics of Galactic GCs using the new Integral Field Unit instrument VIRUS-W. We detect rotation in all 11 GCs that we have observed so far,...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1405.1722
30
30
Dec 2, 2017
12/17
by
Birthe Buch; Victor Skaarup; Bent Fabricius-Bjerres orkester; Sunny Burke, Peggy Lee
audio
eye 30
favorite 0
comment 0
fra Lady og vagabonden
Topic: 78rpm
Source: 78
19
19
Nov 30, 2017
11/17
by
Gitte og Otte Hanning; Bent Fabricius-Bjerre
audio
eye 19
favorite 0
comment 0
2
2.0
Jun 30, 2018
06/18
by
Martin Dottori; Gabriel Fabricius
texts
eye 2
favorite 0
comment 0
In this work we performed a numerical study of an epidemic model that mimics the endemic state of whooping cough in the pre-vaccine era. We considered a stochastic SIR model on dynamical networks that involve local and global contacts among individuals and analyzed the influence of the network properties on the characterization of the quasi-stationary state. We computed probability density functions (PDF) for infected fraction of individuals and found that they are well fitted by gamma...
Topics: Physics, Quantitative Biology, Statistical Mechanics, Physics and Society, Populations and...
Source: http://arxiv.org/abs/1410.1383
13
13
Dec 1, 2017
12/17
by
Liss Jorgensen; Aase Gjodsbol Krogh; Bent Fabricius-Bjerres ork.; Chr. Krogh
audio
eye 13
favorite 0
comment 0
